Funding for this research was provided by:
Health Research Council of New Zealand (10-207)
Text and Data Mining valid from 2019-09-05
Received: 8 May 2018
Accepted: 16 August 2019
First Online: 5 September 2019
Ethics approval and consent to participate
: Written informed parental consent and personal assent was obtained from each participant for the collection and use of the data in future publication. Ethical approval for the study was obtained from the Auckland University of Technology (10/159) and University of Otago (11/084) Ethics Committees.
: Not applicable.
: The authors declare that they have no competing interests.